Which sex party ? Coming to Melbourne from Feb 15th to 17th

We're coming to Melbourne and looking to have a good time on the 15th of Feb. Unsure of which party to attend. Shed 16, The Playground ? or any other happening party. We like to play (with couple and ladies our own age - 20-40 range) We're used to playing in large open playroom - We've frequented The CCK club in Auckland several times and love that kind of atmosphere. Not interested in any events that allow single men. We're staying in the city centre, but have a rental car so travel is not an issue. really looking to make the most Any advice on where we would have the most fun would be welcome. Thanks